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ra1l [238]
3 years ago
12

Please tell me what do i put in the blank?

Mathematics
1 answer:
muminat3 years ago
3 0

Answer:

1. The slope of the line is -2

2. The y-intercept is 10

3. The equation in slope-intercept form is y = -2x + 10

Step-by-step explanation:

The slop-intercept form of the linear equation is y = m x + b, where

  • m is the slope of the line
  • b is the y-intercept (value y at x = 0)
  • The rule of the slope of the line using two points on the line (x1, y1) and (x2, y2) is m = \frac{y2-y1}{x2-x1}

From the given table

∵ (2, 6) and (3, 4) are two points on the line

∴ x1 = 2 and y1 = 6

∴ x2 = 3 and y2 = 4

→ Substitute them in the rule of the slope above to find it

∵ m = \frac{4-6}{3-2} = \frac{-2}{1} = -2

∴ m = -2

∴ The slope of the line is -2 ⇒ (1)

→ Substitute it in the form of the equation above

∴ y = -2x + b

→ To find b substitute x and y in the equation by the coordinates of

    any point in the table

∵ (5, 0) is a point on the table

∴ x = 5 and y = 0

∵ 0 = -2(5) + b

∴ 0 = -10 + b

→ Add 10 to both sides

∵ 0 + 10 = -10 + 10 + b

∴ 10 = b

∴ The y-intercept is 10 ⇒ (2)

→ Substitute the value of b in the equation

∵ y = -2x + 10

∴ The equation in slope-intercept form is y = -2x + 10 ⇒ (3)

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Express the terms of the following sequence by giving a recursive formula.
emmasim [6.3K]

The recursive formula for given sequence is: a_n = a_{n-1}-7

And the terms will be expressed as:

a_1 = 11\\a_2 = a_{2-1} - 7 \\a_2= a_1 - 7\\a_2 = 11- 7\\a_2 = 4\\a_3 = a_{3-1} - 7 \\a_3= a_2 - 7\\a_3 = 4 - 7\\a_3 = -3\\a_4 = a_{4-1} - 7 \\a_4= a_3 - 7\\ a_4= -3 - 7\\a_4 = -10\\a_5 = a_{5-1} - 7 \\a_5= a_4 - 7\\a_5 = -10 - 7\\a_5 = -17\\

Step-by-step explanation:

First of all, we have to determine if the given sequence  is arithmetic sequence or geometric. For that purpose, we calculate the common difference and common ratio

Given sequence is:

11,4,-3,-10,-17...

Here

a_1 = 11\\a_2 = 4\\a_3 = -3\\So,\\d = a_2 - a_1 = 4-11 = -7\\d = a_3-a_2 = -3-4 = -7

As the common difference is same, given sequence is an arithmetic sequence.

A recursive formula is a formula that is used to generate the next term of the sequence using the previous term and common difference

So, the recursive formula for an arithmetic sequence is given by:

a_n = a_{n-1} +d\\Putting\ d = -7\\a_n = a_{n-1}-7

Hence,

The recursive formula for given sequence is: a_n = a_{n-1}-7

And the terms will be expressed as:

a_1 = 11\\a_2 = a_{2-1} - 7 \\a_2= a_1 - 7\\a_2 = 11- 7\\a_2 = 4\\a_3 = a_{3-1} - 7 \\a_3= a_2 - 7\\a_3 = 4 - 7\\a_3 = -3\\a_4 = a_{4-1} - 7 \\a_4= a_3 - 7\\ a_4= -3 - 7\\a_4 = -10\\a_5 = a_{5-1} - 7 \\a_5= a_4 - 7\\a_5 = -10 - 7\\a_5 = -17\\

Keywords: arithmetic sequence, common difference

Learn more about arithmetic sequence at:

  • brainly.com/question/10341324
  • brainly.com/question/10081622

#LearnwithBrainly

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miss Akunina [59]

Answer:

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= 3/9

= 1/3

Step-by-step explanation:

Please mark me brainliest

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